For decades, theories and suspicions have surrounded Kennedy’s untimely demise. As of late, even members of his own family have spoken out about conspiracies they have. Now, a former Secret Service agent who was present at the time of Kennedy’s killing is coming forward with his account of what really happened that day. Paul Landis witnessed the callous murder of the nation’s 35th president firsthand. For the first time, Landis is opening up about what transpired on November 22, 1963.

There have always been conspiracies about JFK’s murder, and the former agent is adding fuel to the fire. The 88-year-old retired Secret Service agent has called several details about the assassination into question and even suggested that Lee Harvey Oswald may not have acted alone when he set out to murder Kennedy.

By 1963, he was assigned to protect JFK’s wife, Jackie Kennedy, and their children, John Jr. and Caroline. Due to his responsibility to protect the First Lady and the president’s family, Landis was one of the Secret Service agents walking directly behind the presidential limo on that fateful day in 1963 when everything changed.

Unfortunately, he wasn’t able to see anything. When he turned back around, he noticed fellow Secret Service agent Clint Hill sprint toward the vehicle that JFK was sitting in. It was then that Landis saw the president get shot in the head. Landis was in such close vicinity of the grizzly scene that he had to duck for cover to avoid being splattered with blood.

When the men were removed to receive medical care, Landis saw two bullet fragments sitting in a pool of blood inside the vehicle. He didn’t touch them, but he also noticed another fully intact bullet in the seam of the car’s leather cushion that could be a major piece of evidence in JFK’s assassination.

According to a 1964 report published by the Warren Commission, a single bullet is said to have entered JFK’s head and passed through his neck before causing multiple injuries to Connally who was seated nearby. Governor Connally was wounded in the chest, right wrist, and left thigh. The assumption that a lone bullet could have caused all of that damage is a bold one, to say the least.

Unconvinced that a single bullet was to blame, conspiracy theorists ran wild with speculation. JFK’s official autopsy determined that he was struck by two separate bullets. According to the autopsy report, one entered his upper back and came out through his neck and the other hit him in the back of the head and exited the front of his skull.

The bullet was discovered on Connally’s stretcher and the Warren Commission alleged that it “eliminated President Kennedy’s stretcher as a source of the bullet.” These findings are wholly inconsistent with Landis’ claims that he found the bullet in the limo and stored it in his pocket. In an interview with The New York Times, Landis expressed his discomfort with how the police handled the crime scene.

“All the agents that were there were focused on the president. This was all going on so quickly. And I was just afraid that – it was a piece of evidence that I realized right away. Very important. And I didn’t want it to disappear or get lost,” he said. Landis recounted how he made a quick decision to take the bullet, adding, “I grabbed it.”

His hope was that doctors could decipher exactly what had happened by examining the bullet and comparing it to the entry and exit wounds. Landis thinks that the bullet may have “bounced” off of JFK’s stretcher and onto the governor’s stretcher, resulting in the single-bullet theory.

In theory, Landis thinks the bullet landed in the backseat and a separate bullet was responsible for JFK’s murder. The new information contributed by Landis adds new insight into a 60-year-old assassination. Landis’ groundbreaking account of what transpired on November 22, 1963, could mean that Lee Harvey Oswald didn’t act alone and the single-bullet theory is incorrect.

“The president’s head exploding – I could not shake that vision,” he said. “Whatever I was doing, that’s all I was thinking about.” He had previously been afraid to speak up about his experience from that day, explaining, “There was a fear that I might have done something wrong and I shouldn’t talk about it.” He said fellow Secret Service agent Clint Hill also discouraged him from speaking out, warning him of the possible “ramifications” that could come along with his testimony.